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authorJeremy Fitzhardinge <jeremy@goop.org>2008-07-15 13:42:34 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-18 13:50:42 +0200
commit95c7c23b06bc92f1772b9c9460845f179ba8c39e (patch)
tree4c1f7b8a07926880746e56202274fae7ed909341 /arch/x86/xen/enlighten.c
parent5b664cb235e97afbf34db9c4d77f08ebd725335e (diff)
xen: report hypervisor version
Various versions of the hypervisor have differences in what ABIs and features they support. Print some details into the boot log to help with remote debugging. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen/enlighten.c')
-rw-r--r--arch/x86/xen/enlighten.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index bb508456ef5..5328e46d9cf 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -167,10 +167,14 @@ void xen_vcpu_restore(void)
static void __init xen_banner(void)
{
+ unsigned version = HYPERVISOR_xen_version(XENVER_version, NULL);
+ struct xen_extraversion extra;
+ HYPERVISOR_xen_version(XENVER_extraversion, &extra);
+
printk(KERN_INFO "Booting paravirtualized kernel on %s\n",
pv_info.name);
- printk(KERN_INFO "Hypervisor signature: %s%s\n",
- xen_start_info->magic,
+ printk(KERN_INFO "Xen version: %d.%d%s%s\n",
+ version >> 16, version & 0xffff, extra.extraversion,
xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : "");
}